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<html>
<head>
<meta name="description" content="Pmw - a toolkit for building high-level compound widgets in Python">
<meta name="content" content="python, megawidget, mega widget, compound widget, gui, tkinter">
<title>Pmw.Balloon reference manual</title>
</head>
<body bgcolor="#ffffff" text="#000000" link="#0000ee"
vlink="551a8b" alink="ff0000">
<h1 ALIGN="CENTER">Pmw.Balloon</h1>
<p>
<dl>
<dt> <h3>Name</h3><dd>
<p>Pmw.Balloon() - </p>
<p></p>
<dt> <h3>Inherits</h3><dd>
<a href="MegaToplevel.html">Pmw.MegaToplevel</a><br>
<dt> <h3>Description</h3><dd>
<p></p>
<p></p>
<dt> <h3>Options</h3><dd>
Options for this megawidget and its base
classes are described below.<p>
<a name=option.activatecommand></a>
<dl><dt> <strong>activatecommand
</strong><dd>
If this is callable, it will be called whenever the megawidget is
activated by a call to <code>activate()</code>. The default is <strong>None</strong>.</p>
</dt></dl>
<a name=option.deactivatecommand></a>
<dl><dt> <strong>deactivatecommand
</strong><dd>
If this is callable, it will be called whenever the megawidget is
deactivated by a call to <code>deactivate()</code>. The default is <strong>None</strong>.</p>
</dt></dl>
<a name=option.initwait></a>
<dl><dt> <strong>initwait
</strong><dd>
The default is <strong>500</strong>.</p>
</dt></dl>
<a name=option.master></a>
<dl><dt> <strong>master
</strong><dd>
This is used by the <code>activate()</code> method to control whether the
window is made <em>transient</em> during modal dialogs. See the
<code>activate()</code> method. The default is <strong>'parent'</strong>.</p>
</dt></dl>
<a name=option.relmouse></a>
<dl><dt> <strong>relmouse
</strong><dd>
The default is <strong>'none'</strong>.</p>
</dt></dl>
<a name=option.state></a>
<dl><dt> <strong>state
</strong><dd>
The default is <strong>'both'</strong>.</p>
</dt></dl>
<a name=option.statuscommand></a>
<dl><dt> <strong>statuscommand
</strong><dd>
The default is <strong>None</strong>.</p>
</dt></dl>
<a name=option.title></a>
<dl><dt> <strong>title
</strong><dd>
This is the title that the window manager displays in the title
bar of the window. The default is <strong>None</strong>.</p>
</dt></dl>
<a name=option.xoffset></a>
<dl><dt> <strong>xoffset
</strong><dd>
The default is <strong>20</strong>.</p>
</dt></dl>
<a name=option.yoffset></a>
<dl><dt> <strong>yoffset
</strong><dd>
The default is <strong>1</strong>.</p>
</dt></dl>
<dt> <h3>Components</h3><dd>
Components created by this megawidget and its base
classes are described below.<p>
<a name=component.hull></a>
<dl><dt> <strong>hull
</strong><dd>
This acts as the body for the entire megawidget. Other components
are created as children of the hull to further specialise the
widget. By default, this component is a Tkinter.Toplevel.</p>
</dt></dl>
<a name=component.label></a>
<dl><dt> <strong>label
</strong><dd>
If the <strong>labelpos</strong> option is not <strong>None</strong>, this component is
created as a text label for the megawidget. See the
<strong>labelpos</strong> option for details. Note that to set, for example,
the <strong>text</strong> option of the label, you need to use the <strong>label_text</strong>
component option. By default, this component is a Tkinter.Label.</p>
</dt></dl>
<a name=methods></a>
<dt> <h3>Methods</h3><dd>
Only methods specific to this megawidget are described below.
For a description of its inherited methods, see the
manuals for its base classes.
<p>
<a name=method.bind></a>
<dl><dt> <strong>bind</strong>(<em>widget</em>, <em>balloonHelp</em>, <em>statusHelp</em> = <strong>None</strong>)<dd>
<p></p>
</dt></dl>
<a name=method.clearstatus></a>
<dl><dt> <strong>clearstatus</strong>()<dd>
<p></p>
</dt></dl>
<a name=method.showstatus></a>
<dl><dt> <strong>showstatus</strong>(<em>statusHelp</em>)<dd>
<p></p>
</dt></dl>
<a name=method.tagbind></a>
<dl><dt> <strong>tagbind</strong>(<em>widget</em>, <em>tagOrItem</em>, <em>balloonHelp</em>, <em>statusHelp</em> = <strong>None</strong>)<dd>
<p></p>
</dt></dl>
<a name=method.tagunbind></a>
<dl><dt> <strong>tagunbind</strong>(<em>widget</em>, <em>tagOrItem</em>)<dd>
<p></p>
</dt></dl>
<a name=method.unbind></a>
<dl><dt> <strong>unbind</strong>(<em>widget</em>)<dd>
<p></p>
</dt></dl>
<dt> <h3>Example</h3><dd>
Example code using Pmw.Balloon.<p>
<pre>
class Demo:
def __init__(self, parent):
# Create the Balloon.
self.balloon = Pmw.Balloon(parent)
# Create some widgets and megawidgets with balloon help.
frame = Tkinter.Frame(parent)
frame.pack(padx = 10, pady = 5)
field = Pmw.EntryField(frame,
labelpos = 'nw',
label_text = 'Command:')
field.setentry('mycommand -name foo')
field.pack(side = 'left', padx = 10)
self.balloon.bind(field, 'Command to\nstart/stop',
'Enter the shell command to control')
start = Tkinter.Button(frame, text='Start')
start.pack(side='left', padx = 10)
self.balloon.bind(start, 'Start the command')
stop = Tkinter.Button(frame, text='Stop')
stop.pack(side='left', padx = 10)
self.balloon.bind(stop, 'Stop the command')
scrolledCanvas = Pmw.ScrolledCanvas(parent,
canvas_width = 200,
canvas_height = 115,
)
scrolledCanvas.pack()
canvas = scrolledCanvas.component('canvas')
# Create some canvas items and individual help.
item = canvas.create_arc(5, 5, 35, 35, fill = 'red', extent = 315)
self.balloon.tagbind(canvas, item, 'This is help for\nan arc item')
item = canvas.create_bitmap(20, 150, bitmap = 'question')
self.balloon.tagbind(canvas, item, 'This is help for\na bitmap')
item = canvas.create_line(50, 60, 70, 80, 85, 20, width = 5)
self.balloon.tagbind(canvas, item, 'This is help for\na line item')
item = canvas.create_text(80, 90, text = 'Canvas items with balloons')
self.balloon.tagbind(canvas, item, 'This is help for\na text item')
# Create two canvas items which have the same tag and which use
# the same help.
item = canvas.create_rectangle(100, 10, 170, 50, fill = 'aliceblue',
tags = 'TAG1')
item = canvas.create_oval(110, 30, 160, 80, fill = 'blue',
tags = 'TAG1')
self.balloon.tagbind(canvas, 'TAG1',
'This is help for the two blue items' + '\n' * 10 +
'It is very, very big.',
'This is help for the two blue items')
scrolledCanvas.resizescrollregion()
scrolledText = Pmw.ScrolledText(parent,
text_width = 32,
text_height = 4,
text_wrap = 'none',
)
scrolledText.pack(pady = 5)
text = scrolledText.component('text')
text.insert('end',
'This is a text widget with ', '',
' balloon', 'TAG1',
'\nhelp. Find the ', '',
' text ', 'TAG1',
' tagged with', '',
' help.', 'TAG2',
'\n\nAnother line.\nAnd another', '',
)
text.tag_configure('TAG1', borderwidth = 2, relief = 'raised')
self.balloon.tagbind(text, 'TAG1',
'There is one secret\nballoon help.\nCan you find it?')
self.balloon.tagbind(text, 'TAG2',
'Well done!\nYou found it!')
frame = Tkinter.Frame(parent)
frame.pack(padx = 10)
self.toggleBalloonVar = Tkinter.IntVar()
self.toggleBalloonVar.set(1)
toggle = Tkinter.Checkbutton(frame,
variable = self.toggleBalloonVar,
text = 'Balloon help', command = self.toggle)
toggle.pack(side = 'left', padx = 10)
self.balloon.bind(toggle, 'Toggle balloon help\non and off')
self.toggleStatusVar = Tkinter.IntVar()
self.toggleStatusVar.set(1)
toggle = Tkinter.Checkbutton(frame,
variable = self.toggleStatusVar,
text = 'Status help', command = self.toggle)
toggle.pack(side = 'left', padx = 10)
self.balloon.bind(toggle,
'Toggle status help on and off, on and off' + '\n' * 10 +
'It is very, very big, too.',
'Toggle status help on and off')
# Create and pack the MessageBar.
messageBar = Pmw.MessageBar(parent,
entry_width = 40,
entry_relief='groove',
labelpos = 'w',
label_text = 'Status:')
messageBar.pack(fill = 'x', expand = 1, padx = 10, pady = 5)
# Configure the balloon to display its status messages in the
# message bar.
self.balloon.configure(statuscommand = messageBar.helpmessage)
def toggle(self):
if self.toggleBalloonVar.get():
if self.toggleStatusVar.get():
self.balloon.configure(state = 'both')
else:
self.balloon.configure(state = 'balloon')
else:
if self.toggleStatusVar.get():
self.balloon.configure(state = 'status')
else:
self.balloon.configure(state = 'none')
</pre>
</dl>
<center><P ALIGN="CENTER">
<IMG SRC = blue_line.gif ALT = "" WIDTH=320 HEIGHT=5>
</p></center>
<font size=-1>
<center><P ALIGN="CENTER">
<a href="index.html">Home</a>.
Pmw 0.8.5
Maintainer
<a href="mailto:gregm@iname.com">gregm@iname.com</a>.
9 Feb 2001
</p></center>
</font>
</body>
</html>
|
